The Verge

SEPTEMBER 2, 2020

Two-factor authentication (2FA) is one of the best and easiest ways to keep your online accounts secure. They work by issuing an authentication code on your phone when somebody tries to access the account; if that person doesn’t have the code, they (or you) don’t get in. Different authentication apps handle this in different ways.

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Dataconomy

MAY 29, 2023

Explanation of QR code A QR code , also referred to as a quick response code or just a QR code, is a sort of barcode that is made to be quickly scanned and read by a smartphone or other specialized scanner. They make it possible for contactless check-ins and authentication, guaranteeing the security of private data.

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Network World

AUGUST 3, 2016

But there are easier ways to steal this sort of data, due to a lack of authentication and encryption between card readers and the POS payment applications. They typically run Windows and have peripherals like keyboards, touch screens, barcode scanners and card readers with PIN pads. POS systems are specialized computers.

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